It is an enormous amount of music. And I am happy to say it is all very worthy of our era and our ears. There are seven mostly exceptional piano sonatas and a sonatina, a good deal of other interesting pieces such as the partita, and a volume devoted to music for children/beginners that is redolent with the Weinberg touch. Allison Brewster Franzetti does a marvelous job bringing out the Weinberg ethos. She seems made for this music.
And so I cherish these four volumes, personally. They bring to us a musical world of which we knew little (here in the States, anyway) until now. His piano music is as central as his symphonies. It is a fine thing to be able to hear all of the former, so well played.